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題名 | 應用單井回復試驗推求水力傳導係數之探討=Application of Single-well Recovery-test for Determining Hydraulic Conductivity |
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作 者 | 鄭皆達; 葉正霖; 林壯沛; 曹舜評; | 書刊名 | 水土保持學報 |
卷期 | 32:2 2000.06[民89.06] |
頁次 | 頁87-96 |
分類號 | 443.67 |
關鍵詞 | 單井; 水力傳導係數; 回復試驗; Single well; Hydraulic conductivity; Recovery test; |
語文 | 中文(Chinese) |
中文摘要 | 傳統單井回復試驗(Recovery-test),通常為抽水試驗後所觀測的數據,用於驗證導永係數(Transmissibility)及貯水係數(Storage Coefficient);若要在單井試驗中求得水力傳導係數,似乎除了Slug-test之外以別無選擇。因此,本研究重新推導Kirkham(1948)的理論,實際進行野外試驗,以驗證其可行性。此外,本研究以程式將S值曲線加以延伸至更大的範圍,且可快速計算S值;在現場的試驗結果顯示,回復試驗所得之K值明顯小於Slug-test所得之K值,但仍符合土壤岩石水力傳導係數標準範圍,因此,回復試驗確實可用於野外之單井試驗,若配合Slug-Test則更可相互驗證以得出較精確的數據。 |
英文摘要 | Traditional single-well recovery test usually provide data after pumping test to verifytransmissibility and storage coefficient. However, Slug-test appears to be the only choice for fielddetermining hydraulic conductivity. This paper derives Kirkham's equation and use fieldexperiment data to verify the recovery test's usefulness in estimating hydraulic conductivity. Furthermore, program was developed to extend S volume for wider ranges and easy computation.The results show that K values measured with recovery test are obviously smaller than those fromSlug test but still agree reasonably well with the typical values of soil and rock hydraulic conductivity. Therefore, recovery' test appears to be suitable in obtaining field experiment values for verifying slugtest results. |
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